Yes, order doesn't matter as long as they're with the other GPs, just set the bGraphicalOnly tag to 1 and add the GPs to their civilization in the CivilizationInfos.xml.
Sometimes stuff has to be displayed separately in GameTextManager.cpp, but changed yields should immediately apply. Did you load an old save after you've made the change.
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, not 30
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.Oh, I think there is an iNumMinorCities variable somewhere that you need to adjust.
